Manchester United's Cristiano Ronaldo (C) celebrates with teammates Patrice Evra (L) and Michael Carrick their Champions League quarter-final, second leg soccer match against Porto at Dragon stadium in Porto, April 15 2009. [Xinhua/Reuters Photo]

 Manchester United's Wayne Rooney (L) and Porto's Hulk go for a header during their Champions League quarter-final, second leg soccer match at Dragon stadium in Porto, April 15 2009. [Xinhua/Reuters Photo]